12751915571 has 16 divisors (see below), whose sum is σ = 13263149088. Its totient is φ = 12251193600.

The previous prime is 12751915549. The next prime is 12751915601. The reversal of 12751915571 is 17551915721.

It is a happy number.

It is not a de Polignac number, because 12751915571 - 2¹⁴ = 12751899187 is a prime.

It is a super-2 number, since 2×12751915571² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12751915511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072841 + ... + 1084661.

It is an arithmetic number, because the mean of its divisors is an integer number (828946818).

Almost surely, 2^12751915571 is an apocalyptic number.

12751915571 is a deficient number, since it is larger than the sum of its proper divisors (511233517).

12751915571 is a wasteful number, since it uses less digits than its factorization.

12751915571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12262.

The product of its digits is 110250, while the sum is 44.

The spelling of 12751915571 in words is "twelve billion, seven hundred fifty-one million, nine hundred fifteen thousand, five hundred seventy-one".